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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:17 |
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Conference: Bucharest University Faculty of Physics 2022 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Air pollution by aerosols over a coal open-mine influenced region in southwestern Romania
Authors:
Adriana Dumitru (1), Alina Olaru (2), Marius Dumitru (3), Gabriela Iorga (1,4)
*
Affiliation:
1) University of Bucharest, Faculty of Physics, Atomistilor 405, Magurele, 077125 Bucharest, Romania
2) University of Bucharest, Faculty of Biology, Splaiul Independence 91-95, Bucharest 050095, Romania
3) National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, Măgurele, 077125, Romania
4) University of Bucharest, Department of Physical Chemistry (Physics Group), Bd. Regina Elisabeta 4-12, 030018 Bucharest, Romania
E-mail
gabriela.iorga@g.unibuc.ro
Keywords:
PM10, PM2.5, PM1, coal, air quality, SEM, EDS analysis
Abstract:
The influence of anthropogenic activities on atmospheric composition, air quality and human health has become a critical issue in the context of nowadays climate changes.
Present study is focused on the determination of the mass concentrations of the airborne particulate matter in a residential area close to a coal open-mine in south-western Romania.
Total carbon fractions (TC) and major ions of different fractions of ambient particulate matter PM10, PM2.5 and PM1 were quantified. The sampling campaigns of 10 days were performed in all seasons between 2018 and 2020. The samples were collected at about 10 m over the ground for 12 hours per day, using two low-volume samplers (substrate: quartz fiber filter) and an eight-stage low-pressure cascade impactor (size range 0.06-16 µm diameter; substrate: aluminum foil). Morphological and compositional sample properties were determined by scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDS) analysis.
Results show the presence of both anthropogenic and natural origin elements in ambient samples with variations well correlated to the strength of nearby anthropogenic activities.
Acknowledgement:
AD and GI thanks the support from the Norway Grants 2014-2021, under Project contract no. 31/01.09.2020, project code EEA-RO-NO-2019-0423.
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